Floor scraper



- May 22, 1928.

A. w. ABRAHAMsEN "21 FLOOR SCRAPER Filed April 6, 1927 Patented May 22,1928.

UNITED STATES PATENT OFFICE.

ALFRED 'W. ABRAHAMSEN, OF QUEENS VILLAGE, NEW YORK, ASSIGNOR F ONE-HALF'I'O ANDERS SKARSTEN, 0F QUEENS VILLAGE, NEW YORK.

rLoon semen.

Application filed April 6, 1927. Serial No. 181,805.

have usua ly comprised a lar'ge blade sharpened at one end and supportedin some suitable form of holder. These blades however quickl became dulland time must be taken to resharpen them or else they must be thrownaway and new blades substituted. As the blades are of considerable size,the throwin away of the blade involves quite a loss. herefore, theobject of the present invention is to provide a detachable cutter, smallin size, inexpensive to make and which when it becomes dull can bethrown away without involving any appreciable money loss.

In the drawings accompanying and forming a part of the specification,Fig. 1 illustrates the present improved floor scraper shown attached toa conventional form of handle, although various forms of handles may beused, if desired; Fig. 2 is a back view of the blade which is shownabout full size; Fig. 3 is a sectional view taken on lme 3-3 thereof;Fig. 4 is a face view of the blade; Fig. 5 is an enlarged detail view ofa portion of the blade shown about twice the size of the actual blade;Fig. 6 is an enlarged detail, partly sectional view of the cutter shownabout three times the size of the actual cutter; Fig. 7 illustrates amodified form of the blade and its cutter; Fig. 8 illustrates anothermodified form thereof and Fig. 9 illustrates a still further modifiedform thereof. 0 Similar characters of reference lndlcate correspondingparts in the several vlews.

Before explaining in detail the present improvement and mode ofoperation thereof, I desire to have it understood that theinvention isnot limited to the details of construction and arrangement of partswhich are illustrated in the accompanying drawings, since the inventionis capable of other embodiments, and that the phraseology which I employis for'the purpose of descript-ion and not of limitation.

" As hereinbefore stated any suitable form of handle may be used, thisnot being an essential part of'my invention since the blade and itscutter may be used without such handle.- In the handle 2 shown as theconventional form the blade 3 is positioned, and this blade may bepermanently or otherwise fixed thereto since it does not have to berenewed 'unless it should lose its resiliency. This blade 3 heretoforehad its lower edge sharpened and as stated when worn either had to beresharpened or the entireblade thrown away. In the present improvement,the lower end of this blade 1s suitably formed or bent to receive adetachable cutter 4. In the form shown in Figs. 1 to 5, the lower end ofthe blade is bent upon itself to provide a U-shaped channel 5, and inthis U-shaped channel is inserted the detachable cutter 4 shown in Fig.6, which comprises a similar but inverted U-shaped back 6 for insertionendwise into the U-shaped channel 5 of the blade and a cutting portion 7bent substantially at right angles to this U-sha-ped" back 6. In theform shown in Fig. 7 the cutter 4 is provided with a T-shaped projection8 for insertion into a similar form of groove 9 located or formed at thelower end of the blade 3'. In Fig. 8, the connection between the bladeand its cutter is of dove tail form and in Fig. 9, this connection isalso of dove tail form, but the dove tail ortions are of circularformation 10. In act all of the ways for attaching the cutter to theblade may be generally considered as of interlocking or dove tail-formespecially. since all of the grooves in the blade have substantially aU-shaped form.

In practice, .both ends of the blades may be similar] formed ifpreferred for the attachment 0 cutters'whereby one cutter may be usedfor a mu h finish while the other may be used for a ner' finish.

It will be observed that the slot 11 formed adjacent the edge of theU-shaped portion ofthe holder is'c'urved in the direction of its lengthas at 12. Consequently as the cutter which is more or less resilient isinserted endwise into its holder the cutter is likewise curved in thedirection of its length.

The advantage'of this is two-fold, first itprevents the ends of thecutter from digging into the wood and secondly bymeans of the resilientcharacter of thecutter it effectively holds the cutter in place to suchanextent that a pair of pliers is necessary to pull it out of the bladeso that the cutter is rigidly held against any movement independently ofits blade whereby it will effectively performits work. Y

Thus, it will be observed that the end of the blade is either formed orbent upon-itself to provide a suitable receiving channel for thereception of the cutter which is detachable therefrom by drawing itendwise from the blade and that this cutter simply comprises a suitablyformed back and a bent v sharpened edge portion for insertion into thesimilarly formed art of the blade.

The cutter of this oor scraper thus comprises a body. or back formedwith or having means .for interlocking it with a holding member or bladeanda cutting edge bent at an angle to the body, this bent cutting edgebeing preformed,--that is, formed during the-manufacture of the cutterand before its attachment to the blade, so that when inserted into itsholding member or blade it is ready for use.

It is to be understood that by describing in detail hereinany particularform, struc-' ture or arrangement, it is not intended to limit theinvention beyond the terms of the several claims or the requirements ofthe prior art.-

Having thus ex lained the nature of my said invention an described a wayof constructing and using the same, although without attempting to setforth all of thei'forms in which it may be made, or all of the modes ofits use, 'I claim:

' 1. A floor scraper comprising a blade and an endwise detachablecutter, secured to the blade, said cutter and blade having similarlyformed connecting or interlocking means for the insertion of one partinto the other, one of which is curved in the direction of its length. I

" 2. A floorscraper comprising a blade and an endwise detachable cuttersecured to the blade, said cutter and blade having similarly formedconnecting or interlocking means for the. insertion of one part intotheother, said interlocking means comprising dove tail portions extendingcrosswise of the blade and cutter, and one of which is curved 'curvedportion the two having such engage ment that the blade maintains asimilar curvaturc'to'the cutter when attached to the blade.

6. A fioor scraper comprising a blade and a detachable cutter, oneformed to receive asimilarly formed portion of the other, the bladehaving a curved portion tending to impart andmaintaining a similarcurvature to the cutter.

7. A floor scra er comprising a blade having a part shape or bent uponitself to rovide a channel, and a detachable cutter havinga cutting edgebent at an angle thereto and a part shaped or bent to conform to that ofthe blade whereb 'thecutter will be interlocked to prevent ateraldisengagement while permitting endwise. disengagement.

' -8. A floor scraper comlp'isi'nga blade hav-, ing a part shaped or ntupon-itself. to provide a channel, and-a detachable'cutter having a'cuttin edgeand apart shaped or bent to con orm 'to that of the bladewhereby the, cutter will be interlocked to prevent lateral disengagementwhile permitting endwise disengagement, said blade also having meanstending to impart and maintaining lengthwise curvature to the cutter. 9.A floor scraper comprising a blade having a U-shaped end' and a.detachable cutter having a back formed to inte'rlock with the blade andprovided with a cutting edge bent at an angle thereto.

-10. A floor scraper comprising a blade having" a U-shaped end and adetachable" cutter having a back formed to interlock with the blade andprovided with a cutting edge, said blade andcutter havingone meanstending to. impart and maintaimng lengthwise curvature to the cutter onthe attachment thereof to the blade.

11. A floor scra er' comprising a blade and an endwise detac able cutterhaving a cutting edge bent at an angle thereto.

12. A floor scraper comprising a blade and an endwise'detachable cutterhaving an ed e bent at an angle thereto and curved in t e direction of.its len h. i

13. A cutter for a oor scraper comprising a bod and a cutting edge bentduring the manu acture of the cutter at an an 1e to the body, said bodyhaving means for interlocking it with a holdin member.

14. A cutter for a cor scraper com risin a body bent upon itself to forma c anne and a cutting e e bent during the manufacture of the cutter atan angle to such body. a body straight in the direction of its length 1015. A cutter for a floor scraper comprising and having means forinterlocking it w1th a body straight in the direction of its length aholding member having a curved-formed and bent upon itself to formachannel for channel, and a cutting edge bent at an angle 5 interlockingit with a holding member havto the body.

ing a curved-formed channel and a cutting Signed at Room 1822, Park RowBld 15 edge bent during the manufacture of the cut- New York, N. Y.,this 30th day of Marc ter at an angle to the body. 1927.

' 16. A- cutter for a floor scraper comprising ALFRED W. ABRAHAMSEN.

